Abstract: The invention relates to a method for preparing or effecting access, in data transmission, from a first application which is run on a client data processing device to a transmission medium which is coupled to the client data processing device. The steps performed are: providing a second application which includes at least one interface for converting the format of information, transmitted by the first application, to a standard format which is predetermined by the second application; and registering the second application with the client data processing device or installing the second application on the client data processing device in order to transmit the information of the first application in the standard format between the second application and the transmission medium or to enable the information of the first application to be transmitted in the standard format between the second application and the transmission medium.